Back in my rugby days we used a conditioning drill in which we would stand back to back with another player, sink into a wall squat leaning against each other for a period of time, sprint out a distance, repeat. The idea being that you were getting used to sprinting with pre-fatigued muscles, building tolerance to lactic acid build up.
I haven’t bought any of your templates that use “myoreps”, but sounds like this may be a similar practice.
Does this method strike you as useful? Any other ways you would consider using this method?
Technically, all training fatigues the muscle to some degree and thus, the preceding training causes pre-fatigue to the active muscle groups.
As far as that rugby drill- no, that doesn’t sound useful in the grand scheme of things with other available options. Holding a squat isometrically doesn’t really take a lot of force production relative to dynamic-isometric movements, like most resistance training. It doesn’t create much lactate (not that this matters) or recruit many motor units unless the leverage or loading is manipulated- so it’s not a really good pre fatigue method.
What do you think of breathing squats - you descend to the bottom, then pause and take a few breaths, then ascend? The idea is to improve your ability to stay tight, because the relevant muscles have to work harder than they would with valsalva.
I think that reasoning is highly suspect. Rather, pausing for longer increases the amount of fatigue placed on the muscle increases- making it harder regardless of the breathing.